JPS6333473Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention incorporates an arc tube inside a light bulb-shaped container with a globe fitted on the cap that is fitted into a light bulb socket, and connects the pole legs of the arc tube to both poles of the cap. In order to improve the discharge tube made of the above-mentioned globe, a thick part with the upper surface as a reflective surface is provided at the lower part of the inner periphery of the globe, and a through hole in the center of the thick part stably supports the discharge tube. The light emission is reflected by the above-mentioned reflecting surface to make the light emission display clear.

Luminous tubes such as neon lamps consume less power,
It has been used in pilot lamps for a long time because of its low heat generation and long life. In addition, in order to replace an incandescent pilot lamp, it is well known that a light bulb-shaped container with a cap that fits into a light bulb socket is fitted with a light bulb or a light bulb and a stabilizing resistor. The disadvantage is that the brightness of the light emitted from the arc tube is insufficient. The present invention eliminates such drawbacks as much as possible by improving the glove.

Several embodiments of the present invention will now be described.

FIG. 1 shows a first embodiment, in which 1 is a light bulb-shaped container in which a globe body 3 is fitted into a base 2 that fits into a socket for a light bulb, and the globe body 3 is a lower half that is fitted and fixed to the base 2. It is composed of two bodies: a body 4 and an upper half 5 which is covered and fixed to the lower half 4, and the lower half 4 has a semi-concave spherical thick part 7 formed on the upper surface, and the concave sphere A reflective surface 6 is provided on the inner surface of the part, a through hole 8 is bored in the center of the lower half 4, and a fitting stepped part 9 is provided on the outer periphery of the upper part.
The lower edge of the upper half 5 is externally fitted into the fitting step 9. Reference numeral 10 connects one pole electrode leg 10a to one electrode part 1a of the base 2, and connects the other one pole electrode leg 10b to the other electrode part 1b of the base 2 via a stabilizing resistor 11.
A neon lamp or other rod-shaped arc tube connected to the tube is passed through the through hole 8 somewhat gently so that the outer periphery of the lower part is stably supported by the lower half body 4.

In the above, the glove body 3 is molded from a material that transmits light well, such as acrylic resin. The reflective surface 6 is formed by adhering a metal material such as an aluminum plate, or by plating such as vacuum plating.

FIG. 2 shows another embodiment of the glove, in which a glove body 21 has a cylindrical portion 22 at the lower inner circumference, a piece 23 having a semi-concave spherical portion on the upper surface is fitted into the cylindrical portion, and an inner surface of the semi-concave spherical portion is fitted. A reflective surface 24 is provided in the cylindrical portion 22, a through hole 25 is provided in the center of the piece 23, and the piece 23 is fitted into the cylindrical portion 22 to form a thick portion 26. All other details conform to Figure 1.

The reflective surfaces 6, 24 can also be slightly inclined with respect to the axis of the base 2.

The present invention has the configuration as exemplified above, and the luminous tube 10 incorporated in the bulb-shaped container is connected to the globe bodies 3 and 2.
Since the lower part is fitted into and supported by the through holes 8, 25 at the center of the thick parts 7, 26 formed at the lower part of the inner periphery of the container, it is stable and there is no risk of tipping over or tilting.
Furthermore, since the light emitted from the arc tube 10 is reflected by the reflective surfaces 6 and 24, almost no amount of light leaks into the interior of the cap 2, and since the total amount of light emitted is concentrated in one direction and scattered light is reduced, the amount of light emitted is reduced. At least, it looks bright when viewed from the surface of the glove, and the light emitting display function can be improved.

[Brief explanation of drawings]

The accompanying drawings show embodiments of the present invention, and FIG.
FIG. 2 is a longitudinal sectional front view of the glove body of another embodiment. 1 → light bulb-shaped container, 1a, 1b → electrode part, 2 → cap, 3, 21 → glove body, 4 → lower half body, 5 →
Upper half, 6, 24 → reflective surface, 7, 26 → thick part,
8, 25 → through hole, 10 → arc tube.

Claims (1)

[Scope of utility model registration request] A discharge lamp in which an arc tube is assembled inside a bulb-shaped container in which a globe body is fitted into a cap that is fitted into a light bulb socket, and the bipolar legs of the arc tube are respectively connected to both poles of the cap, A thick wall portion having a hemispherical recess is provided at a lower inner circumference of the glove,
A discharge lamp characterized in that a reflective surface is provided on the inner surface of the hemispherical recess, and a lower part of the arc tube is inserted into a central through hole formed in the center of the hemispherical recess.